Hi, I'm an RN with almost no PICC experience and have been unable to find the answer to this question: My elderly father had a PICC placed last month and he mentioned last night he is able to see the outline of the PICC line running under his skin. I came over to look and he is right! It is especially prominent from the upper right arm to his right chest. Is it normal to be able to visualize the outline of a PICC thru the skin from outside his body? Thanks for any information you can provide?